This is a USAF MiG-21 evaluation video of the capabilies of the Fishbed jet fighter. The second half of this Youtube MiG-21 video shows some very good footage of MiG-21 jet fighters taking off and doing airshow flybys.

Here is an excellent MiG-21 Youtube Video of the Soviet Fighter starting up, taxiiing, taking off and doing flybys and low altitude. It's pretty cool and the sound is quite good too.